Is email killing you?

A new study released Thursday by the University of California, Irvine, which was co-written with United States Army researchers, found that people who do not look at e-mail on a regular basis at work are less stressed and more productive.

And:

“We were able to get second-by-second stress levels from our tests and we found that over the five-day period away from e-mail, people’s stress levels went down compared with when they were using e-mails,” Ms. Mark said.